GoogleMaps api vs https://maps.google.com/(GoogleMaps api vs https://maps.google.com/)

 是的，您可以通过pluginOptions的endDate属性禁用将来的日期。 
 
echo $form->field($model, 'dob')->widget(DatePicker::classname(), [
  'options' => [
    'placeholder' => Yii::t('app', 'Please pick your birth-date'), 
  ],
  'type' => DatePicker::TYPE_INPUT,
  'pluginOptions' => [
    'autoclose'=>true,
    'format' => 'dd/mm/yyyy',
    'startView' => 1,
    'endDate'=>date('d/m/Y')
  ],
])->label(Yii::t('app', 'Date of Birth'));

Yes, you can the future dates disable by endDate property of pluginOptions.
 
echo $form->field($model, 'dob')->widget(DatePicker::classname(), [
  'options' => [
    'placeholder' => Yii::t('app', 'Please pick your birth-date'), 
  ],
  'type' => DatePicker::TYPE_INPUT,
  'pluginOptions' => [
    'autoclose'=>true,
    'format' => 'dd/mm/yyyy',
    'startView' => 1,
    'endDate'=>date('d/m/Y')
  ],
])->label(Yii::t('app', 'Date of Birth'));